From owner-wx-tropl@LISTSERV.ILLINOIS.EDU Sun Dec 19 06:45:50 2010 Received: from vacuum.cso.uiuc.edu (vacuum.cso.uiuc.edu [128.174.5.113]) by cozumel.ust.hk (8.13.8/8.13.8) with ESMTP id oBIMjncx025045 for ; Sun, 19 Dec 2010 06:45:50 +0800 Received: from vacuum.cso.uiuc.edu (vacuum.cso.uiuc.edu [128.174.5.113]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBI60DdW027712; Sat, 18 Dec 2010 16:45:14 -0600 (CST) Received: by LISTSERV.ILLINOIS.EDU (LISTSERV-TCP/IP release 14.5) with spool id 4817528 for WX-TROPL@LISTSERV.ILLINOIS.EDU; Sat, 18 Dec 2010 16:45:14 -0600 Received: from relay05.cites.uiuc.edu (relay05.cites.uiuc.edu [128.174.4.40]) by vacuum.cso.uiuc.edu (8.14.2/8.14.2) with ESMTP id oBIMjExe016568 for ; Sat, 18 Dec 2010 16:45:14 -0600 (CST) Received: from weather3.admin.niu.edu (weather3.admin.niu.edu [131.156.8.48]) by relay05.cites.uiuc.edu (8.14.4/8.14.2) with ESMTP id oBIMj7Mx026612 for ; Sat, 18 Dec 2010 16:45:14 -0600 (CST) Received: by weather3.admin.niu.edu (Postfix, from userid 501) id B94F5144B0001; Sat, 18 Dec 2010 16:45:07 -0600 (CST) X-Proofpoint-Spam-Reason: safe Message-ID: <20101218224507.B94F5144B0001@weather3.admin.niu.edu> Date: Sat, 18 Dec 2010 16:45:07 -0600 Reply-To: wxmaster@COX.NET Sender: WX-TROPL Tropical Storm and Hurricane WX products From: SIU Weather Processor Subject: Pacific-NW: Subj/significant Tropical Weather Advisory For The Western And To: WX-TROPL@LISTSERV.ILLINOIS.EDU Precedence: list ABPW10 PGTW 182230 MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND /SOUTH PACIFIC OCEANS REISSUED/182230Z-190600ZDEC2010// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: (1) AN AREA OF CONVECTION HAS PERSISTED NEAR 22.6N 179.8E, APPROXIMATELY 375 NM SOUTH-SOUTHWEST OF MIDWAY ATOLL. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS A WELL DEVELOPED LOW LEVEL CIRCULATION CENTER (LLCC) WITH CENTRAL CONVECTION ALOFT, HOWEVER FURTHER ANALYSIS INDICATES THE SYSTEM APPEARS TO BE SUBTROPICAL. A RECENT AMSU CROSS-SECTION AND 200 MB ANALYSIS DEPICT A COLD-CORE CUT OFF LOW ALOFT WITH A COLD-CORE ANOMALY EXTENDING UP TO 10 KM. THE CIMMS TOTAL PRECIPITABLE WATER PRODUCT SHOWS COLD, DRY, AIR BEING ENTRAINED INTO THE SYSTEM FROM THE NORTHWEST. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1000 MB. THE SYSTEM IS CURRENTLY ASSESSED AS SUBTROPICAL AND WILL BE CLOSELY MONITORED FOR POSSIBLE TRANSITION INTO A TROPICAL SYSTEM. BASED ON THE ABOVE ASSESSMENT THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS POOR. (2) NO OTHER SUSPECT AREAS. 2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE. 3. JUSTIFICATION FOR REISSUE: ADDED AREA IN PARAGRAPH 1.B.(1) AS POOR.// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from WX-TROPL send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with "unsub wx-tropl" in the body of your message. For help with WX-TROPL write to cnovy@cox.net. For more information on tropical weather products, see the NHC Homepage at http://www.nhc.noaa.gov.